2123926 has 16 divisors (see below), whose sum is σ = 3663360. Its totient is φ = 904680.

The previous prime is 2123917. The next prime is 2123939. The reversal of 2123926 is 6293212.

It is a happy number.

It is a super-2 number, since 2×2123926² = 9022123306952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2123926.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2595 + ... + 3313.

It is an arithmetic number, because the mean of its divisors is an integer number (228960).

2^2123926 is an apocalyptic number.

2123926 is a deficient number, since it is larger than the sum of its proper divisors (1539434).

2123926 is a wasteful number, since it uses less digits than its factorization.

2123926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939.

The product of its digits is 1296, while the sum is 25.

The square root of 2123926 is about 1457.3695481929. The cubic root of 2123926 is about 128.5424166168.

The spelling of 2123926 in words is "two million, one hundred twenty-three thousand, nine hundred twenty-six".